C509-L_97 Datasheet, PDF (279/290 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

Device Specifications
C509-L
External Clock Drive XTAL2
Parameter
Oscillator period
High time
Low time
Rise time
Fall time
Oscillator duty cycle
Clock cycle
Symbol CPU Clock = 16 MHz
Variable CPU Clock Unit
Duty cycle 0.45 to 0.55 1/CLP = 3.5 to 16 MHz
min.
max.
min.
max.
CLP
62.5
62.5
62.5
285
ns
TCL_H
TCL_L
t_R
t_F
DC
25
25
–
–
0.45
–
–
10
10
0.55
25
25
–
–
25 / CLP
CLP-TCL_L ns
CLP-TCL_H ns
10
ns
10
ns
1 - 25 / CLP –
TCL
25
37.5
CLP * DC_min CLP * DC_max ns
Note: The 16 MHz values in the tables are given as an example for a typical duty cycle variation of
the oscillator clock from 0.45 to 0.55.
Semiconductor Group
11-9
1997-10-01